As “Grey’s Anatomy” prepares to air its 300th episode tonight, Pompeo’s character has seen her share of personal drama over the years.

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Ellen Pompeo and Jesse WIlliams from the episode "Puttin' on the Ritz" of "Grey's Anatomy," which aired Oct. 10, 2013 on the ABC Television Network.

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Ellen Pompeo in an episode of "Grey's Anatomy," which aired on Nov. 8, 2012, on the ABC Television Network.

When asked if she is ever called to be a doctor in real-life, Pompeo replied it is “more psychiatry.”

“I diagnose everybody and tell everybody what’s wrong with them,” she said with a laugh.

In reality, Pompeo’s role on “Grey’s Anatomy” has actually changed lives.

Three women described to Pompeo in taped messages that aired on “GMA” how they were inspired to pursue careers as nurses and doctors because they saw Pompeo playing a female doctor on TV.

“You helped inspire me to become a doctor and to become this strong and independent woman in this traditionally male-dominated field,” said Dr. Elana Fotiou. “I think that the women of ‘Grey’s Anatomy’ are like modern-day superheroes.”

ABC

Dr. Elana Fotiou said she was inspired to become a doctor by Ellen Pompeo's character on "Grey's Anatomy."

Laura Tiu has played a nurse on “Grey’s Anatomy” for the past 14 seasons.

ABC

Laura Tiu said she was inspired to go to nursing school after playing a nurse on "Grey's Anatomy."

“It was such an inspiration to be on set, I looked into being a real nurse and I went ahead and got my master’s degree in nursing,” she said. "And here I am."

Carleigh Fisher said she first watched “Grey’s Anatomy” as a 15-year-old.

ABC

Carleigh Fisher said she was inspired to go to medical school by Ellen Pompeo's character on "Grey's Anatomy."

“I knew that I wanted to be a surgeon and now I’m going to medical school next year,” she said. “And just continuing to pursue my dream to be a doctor and to be like Meredith Grey.”

Pompeo called it a “blessing” as an actress to play a character that inspires others.

“First of all, to play a doctor, you realize how precious life is and how lucky we are just to be living and breathing and our heart beating every day,” she said. “And then to have that on top of it is really moving.”

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PHOTO:Martin Henderson and Ellen Pompeo of Grey's Anatomy during the show entitled, "Ring of Fire."

She continued, “I don’t know how I couldn’t be thrilled every day just to get the opportunity to do this and touch people the way that we touch them.”

The 300th episode of "Grey's Anatomy" takes a look back at the show's past 14 seasons. Characters now gone from the show will return but be played by different actors.

"When I first read the script I was a little, you know, I felt some type of way about it because I have an affection for those people and I thought you can’t certainly recreate them or copy them," Pompeo said. "I was like, 'I don’t know if I’m into this idea.'"

"But then when I saw the actors come on set, then I felt a whole other type of way and I got really nostalgic."

The 300th episode of "Grey's Anatomy" airs tonight as part of ABC's "TGIT" lineup.